Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 675 · 40 questions

Engineer's tip (Low, wide, flexible): Safer: wide base, flexible joints, bracing, steel in concrete, light roof, rubber pads, simple shape. Less safe: heavy tops, narrow bases, loose bricks, no steel, brittle joints. Tipping: compare height ÷ base width — the smaller it is, the steadier the block.

1. 1.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
3. 3.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) raising heavy tanks high (d) making brittle joints
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they are cheap (d) they stop shaking
5. 5.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) using a light roof (d) using flexible joints
6. 6.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
7. 7.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
9. 9.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) making brittle joints (d) stacking loose bricks
12. 12.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) using flexible joints (d) having a wide base
14. 14.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) adding cross bracing (d) stacking loose bricks
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
16. 16.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) using a heavy roof (d) having a wide base
17. 17.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) building tall and narrow (d) raising heavy tanks high
19. 19.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) using flexible joints (d) adding cross bracing
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 320 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
22. 22.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) stacking loose bricks (d) keeping a simple shape
23. 23.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) raising heavy tanks high (c) making brittle joints (d) building tall and narrow
24. 24.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) hanging outside (d) on a thin pole
25. 25.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) making brittle joints (d) adding cross bracing
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
27. 27.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
28. 28.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) fitting rubber base pads (d) keeping a simple shape
29. 29.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) having a wide base (d) leaving out steel bars
33. 33.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
34. 34.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🔍 Which is the odd one out? (a) building tall and narrow (b) fitting rubber base pads (c) keeping a simple shape (d) having a wide base
36. 36.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
37. 37.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) stacking loose bricks (d) keeping a simple shape
38. 38.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) building tall and narrow (d) adding cross bracing
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) using a light roof (d) making brittle joints

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